TBH I would prefer using USDT over BUSD, I know BUSD just came out not too long ago, and  it's clear that Binance want their stable coin to be more patronized cuz they have changed all the top pairs e.g BTC/USDT to BTC/BUSD, they are slowing pushing USDT aside, but I will still prefer using USDT cuz it is listed on almost every cryptocurrency exchange out there, and USDT uses both eth network and tron network, BUSD will have to bring something more in other to take out USDT else its just another regular stablecoin.